interface null
0

Syntax Description

Command Default

No default behavior
or values

Command Modes

Global configuration

Command History

Release

Modification

Release 2.0

This command
was introduced.

Usage Guidelines

When you issue the
interface null 0
command in
global
configuration
mode, the CLI prompt
changes to “config-null0,” indicating that you have entered interface
configuration mode for the null interface. In the following sample output, the
question mark (?) online help
function displays all the commands available under the interface configuration
mode for the null interface:

RP/0/RP0/CPU0:router(config)# interface null 0RP/0/RP0/CPU0:router(config-null0)#?
commit Commit the configuration changes to running
describe Describe a command without taking real actions
do Run an exec command
exit Exit from this submode
no Negate a command or set its defaults
show Show contents of configuration